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Ext JS 4 First Look Paperback – January 10, 2012

3.0 out of 5 stars 13 customer reviews

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Editorial Reviews

About the Author

Loiane Groner, Brazilian (born and raised), lives in Sao Paulo and began her IT career developing Java web applications. While at university, she demonstrated great interested in IT. She worked as teaching assistant for two and a half years for the Algorithms, Data Structures and Computing Theory. She rpresented her university at the ACM International Collegiate Programming Contest - Brazilian Finals (South America Regionals) and also worked as Student Delegate of the SBC (Brazilian Computing Society) for two years. She won a merit award in her senior year for being one of the top three students with better GPAs in the Computer Science department and also graduated with honors. After three years of Java development she got a job opportunity at IBM Brazil, where she developed Java and Ext JS applications for an American company for two years. At IBM, she became Team Leader and was reponsible for training new hires at Java, XML and Ext JS technologies. Nowadays she is working as Senior Software Engineer at Citibank Brazillian Technology Solutions Center, where she develops overseas solutions. She also works as an independent Ext JS consultant and coach. Loiane is passionate about Ext JS and Java, and she is the CampinasJUG (Campinas Java Users Group) Leader and ESJUG (Espirito Santo Java Users Group) co-ordinator, both Brazilian JUGs. Loiane also contributes to the software development community through her blogs: http://loianegroner.com (English) and http://loiane.com (Portuguese-BR), where she writes about her IT career, Ext JS, Spring Framework and general development notes.
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Product Details

  • Paperback: 340 pages
  • Publisher: Packt Publishing (January 10, 2012)
  • Language: English
  • ISBN-10: 1849516669
  • ISBN-13: 978-1849516662
  • Product Dimensions: 7.5 x 0.8 x 9.2 inches
  • Shipping Weight: 1.6 pounds (View shipping rates and policies)
  • Average Customer Review: 3.0 out of 5 stars  See all reviews (13 customer reviews)
  • Amazon Best Sellers Rank: #2,669,866 in Books (See Top 100 in Books)

Customer Reviews

Top Customer Reviews

Format: Paperback
This book is validation for brick and mortar bookstores as if I were able to see the book before I bought it I would have never made the purchase. The author, although perhaps extremely knowledgeable, offers no new information here that you cannot get on the web from Sencha and other sources. I bought the book primarily because it advertises building an MVC app with ExtJs. The app is very minimal and is essentially the same app you can find on the web. The book offers no real insights or explanations of how you would be a real world application. At best the book give a comparison of ExtJs 3 & 4. Don't waste your time or money. Go to the following Sencha sites and you will find more info than contained in this book. There are also many examples included in the sdk download. I gave this book one star because you have to give it at least that much to publish the review. Sorry to be so hard on the author.

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Format: Kindle Edition Verified Purchase
Great, if you like to know all the 4.0 features in a nutshell. It's a very quick read and short book. I finish in a few hours and therefore minus a star for being too short.

From my experience, any book about js libraries is a waste of money because it will be quickly outdated and the web will always have better and newer material. The argument that it's easier to follow a book does not really hold true since the Sencha docs provide really good and dummy-proof (I'm looking at you) tutorials as well.

I mainly got it because I was starved for more information and bored in the subway with no internet access.
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Format: Kindle Edition Verified Purchase
First, let me note that the book is full of errors and spelling mistakes. Not of any real concern, but perhaps evidences the effort that went into it. More importantly, the examples are poor, not delving into nearly enough detail nor covering the subject thoroughly.

As a previous reviewer noted, the book adds nothing to the material that can be found online for free. I read that review before purchasing, so I went into this with low expectations. I would have been happy with a well-organized, clearly explained version of just what is online, to save me the time of clicking around and finding it myself. Even with those expectations I was disappointed.

For someone that already knows EXT JS 3 and is looking solely for information on transitioning to 4, perhaps this book has some utility (though again, no more, and probably less, than what is online). For anyone new to EXT JS and perhaps thinking that this book will give them a general education on the topic, don't even consider it.
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Format: Paperback
Like some other say here you can find everything that is in this book on the web but there are two important things you have to keep in mind: you can't bring the web with you everywhere, and the book is well organized, it's not a mess like the web. So this book will help you to learn *quickly* ExtJS the right way.

You won't loose a lot of hours trying to find the right documentation at the right place.

Everything is here: what's new in ExtJS 4, then the Data Package, the Layout, the Charts, Grid, Tree, and Form, the Themes and the MVC application architecture.

One thing you need to know: it's for people who know well JavaScript (anyway ExtJS is a JavaScript framework!).

That said, this book is for you if you want to learn *quickly* ExtJS.

If you prefer to loose hours on the web to find the right documentation, then you may save a few bucks.
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Format: Paperback
The book's title suggests it is an introduction to Ext JS 4. However, the truth in the word "introduction" depends on what kind of introduction a reader needs. If you have developed Ext JS 3 code already and you know how Ext JS 3 works under the hood, this book might well be enough to get you on track for version 4 as it compactly recaps all important differences between 3 and 4. In 300 pages, the author Loiane Groner (who is an active member of the Sencha/ExtJS community), mentions the important features of Ext JS 4, each with a rather simple code example.

That's where the book's "consistency within itself" starts to dwindle a bit: The code examples are simple. But if you're an Ext JS 3 aficionado (like described above) and know the devil is often in details (which are not covered by this book) then simple code examples are not enough. What might also not satisfy some readers is that the number of pages spent on different topics might not always reflect the way Ext JS is usually used in: While the new MVC pattern of Ext JS 4 is the single most important change from 3 to 4, this topic is given only about 45 pages. However, the topic of charting using Ext JS is given about 55 pages which to me is clearly an overevaluation.

My summary: Use this book if you'd like to quickly get started with rather smallish Ext JS 4 projects IF you have used Ext JS 3 before and do not need to understand how Ext JS 4 works deep under the hood. What first sounds negative here might well be an advantage for readers who don't want to get the idea of how version 4 works without having to read endless paragraphs of prose.
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Format: Kindle Edition
Are you an experienced ExtJS developer currently using version 3.x but looking to migrate your application to version 4.x? ExtJS 4 First Look will be an excellent place for you to start.

The author, Loiane Groner, wrote a detailed guide explaining ExtJS 4 from start to finish. It is well organized, easy to digest, and has plenty of examples to keep you busy.

If you're new to the ExtJS framework... this book might not be the best place to start, as huge chunks of the book are spent drawing comparisons between versions 3.x and 4.x. (This isn't a bad thing - just something to consider.)

My only complaint is that the code examples aren't properly indented in the Kindle version. It's not a deal breaker, but it's annoying.
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